Camshaft assembly and method for producing a camshaft assembly

摘要

A camshaft assembly, comprising a camshaft (2) having a receiving space (6) in an interior thereof, at least some sections of the assembly being made of a magnetizable material, and an electromagnetic actuating unit (4) for actuating an actuating partner (5), comprising a control valve of a camshaft adjuster (3), a coil winding (8) and an armature (7) for cooperating with the actuating partner (5), the armature being adjustable by energizing the coil winding (8). The armature (7) is arranged at least in some sections, preferably completely, inside the camshaft (2) in the receiving space (6) and the coil winding (8) for the non-contact adjustment of the armature (7) is arranged radially outside the camshaft (2), and the camshaft (2) has a first axial section (9) and a second axial section (10), between which a material region (11) influencing the magnetic flow (12) is provided in order to increase the magnetic flow (12) from one of the axial sections (9, 10) to the respective other axial section (9, 10) via the armature (7).

主权项

1. A camshaft assembly, comprising a camshaft having a receiving space in an interior thereof, at least some sections of the assembly being made of a magnetisable material, and an electromagnetic actuating unit for actuating an actuating partner comprising a control valve of a camshaft adjuster, a coil winding and an armature for cooperating with the actuating partner, the armature being adjustable by energizing the coil winding, the armature is arranged inside the camshaft in the receiving space and the coil winding for non-contact adjusting of the armature is arranged radially outside the camshaft, the camshaft has a first axial section and a second axial section and between the first axial section and the second axial section is provided a material region influencing the magnetic flux and increasing the magnetic flux from one of the first and second axial sections to the respectively other of the first and second axial sections via the armature.